Codex App Server
Experimental JSON-RPC interface that powers rich Codex clients (e.g. the VS Code extension); embed Codex in your product. Replaces the removed codex mcp-server.
Tags
Description
Started with codex app-server (WebSocket, Unix-socket and stdio transports); provides authentication, conversation history, approvals and streamed agent events. Open source under codex-rs/app-server. OpenAI notes it is experimental and not supported for production workloads; it is not an MCP server.
Agent access
Related
- OpenAI Codex CLI: OpenAI's lightweight open-source coding agent that runs in your terminal.
Sources
- https://learn.chatgpt.com/docs/app-server.md
- https://learn.chatgpt.com/docs/mcp-server.md
- https://github.com/openai/codex
Machine-readable
- JSON
- Markdown
- Source file on GitHub (edit via pull request)